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Sequoia Labs Residual Solvent Testing

Concentrates and tinctures are analyzed for harmful concentrations of residual solvents including: Butane, Pentane, Hexane, and Isoproponol. These results are reported using our Gas Chromatograph (GC) in parts per million (ppm). By utilizing these results and the USP 467 Residual Solvent standard we can determine the consumption safety of your medicine.

Current Thresholds

  • Propane         – 5000ppm
  • Isobutane      – 5000ppm
  • Butane           – 5000ppm
  • Isopentane    – 5000ppm
  • Pentane          – 5000ppm
  • Hexane           – 280ppm
  • Methanol       – 3000ppm
  • Ethanol          – 5000ppm
  • Acetone          – 5000ppm
  • Isopropanol   – 5000ppm
  • Acetonitrile – 410ppm